Physical Chemistry 1200-2EN-PCHLE1M
The course comprises:
I. The interface.
- nature of interfaces; microscopic picture.
- surface tension; cohesion and adhesion.
- temperature effect on surface tension
- curved interfaces (Young-Laplace equation); capillarity,
- Kelvin equation, capillary condensation.
- wetting and wetting angle.
- surfactants.
II. Thermodynamics of interface.
- „surface phase” concept
- the Gibbs Model, Guggenheim approach
- state functions of the interface.
- Gibbs-Helmholtz and Gibbs-Duhem relations.
- Gibbs adsorption equation; functional definition of the interface.
III. Insoluble films on the interfaces
- interfacial pressure; equation of state for ideal 2D systems.
- compression/decompression isotherms.
- phase transitions of molecular films
- Miscibility of molecular films at interfaces; thermodynamics of mixing.
IV. Electrical potentials at interfaces.
- equilibrium potentials
- Donnan potential
- electrical double layer: electrocapillary curve, Lippman equation e.d.l. consequences (electrode processes, surface confinement, electrical field), electrokinetic phenomena, applications (on-chip assays, microfluidics, PCR); contact potential difference (CPD)
- non-equilibrium potentials
- irreversible thermodynamics; basic postulates and definitions, entropy flux, Nernst-Planck equation: diffusion, migration, conductivity, membrane potentials
V. Electrochemical kinetics
- overview of electrode processes
- thermodynamics of electrochemical cells
- kinetics of electrode reactions
- transition state theory, Butler-Volmer equation, Tafel plots,
- overpotentials
- transport in the solutions: migration and diffusion
- experimental methods for studies of electrode reactions
VI. Electroactive layers and modified electrodes
- preparation and characterization of electrodes modified with organic, inorganic and hybrid systems
VII. Electrochemistry of nanoparticles
- preparation of nanoparticles (metals, semiconductors, oxides, salts) their properties and applications
Type of course
Course coordinators
Learning outcomes
After the course the student:
- knows the basic terms and how to use them in interfacial phenomena, electrochemical kinetics,
- knows the main relationships in electrochemistry and how to use them,
- knows the basis of fundamental physicochemical processes,
- is able to predict a direction of physicochemical processes after the change of various parameters, like temperature, concentration, potential,
- is able to describe and apply electrochemical methods such as: chronoamperometry, cyclic voltammetry, chronopotentiometry, coulometry, and spectroelectrochemistry
- is able to determine the fundamental physicochemical parameters from experimental data
- is able to interpret experimental data and infer appropriate conclusions.
Assessment criteria
Written exam after the course. To pass the exam, the student has to receive at least 50% of total allocated points
Practical placement
does not concern
Bibliography
1. Zigniew Galus, Teoretyczne podstawy elektroanalizy chemicznej, PWN, Warszawa 1977,
2. Electrochemical Methods: Fundamentals and Applications, Allen J. Bard, Larry R. Faulkner, 2nd ed, Wiley, 2001
3. Electrochemistry: Principles, Methods, and Applications, Christopher M. A. Brett and Ana Maria O. Brett, Oxford Science Publications, 1993
Additional information
Additional information (registration calendar, class conductors, localization and schedules of classes), might be available in the USOSweb system: